Illinois Gov. JB Pritzker will announce this week that he is running for a third term, a person familiar with the governor's plans confirmed Tuesday. The announcement will take place on Thursday, the sources said.

Mr. Pritzker, a Democrat and billionaire hotel heir, has emerged as a vocal critic of President Trump and a possible presidential contender.

Illinois Gov. J.B. Pritzker is expected to announce Thursday he plans to run for reelection, according to multiple reports.